sequence-of-DTFT-analysis

bicubic.m bilinear.m nearest.m多媒体实验m文件 用matlab软件实现(bicubic.m bilinear.m nearest.m)

说明：  压缩包里包含了无约束优化问题常用的几种求解方法的源程序：变量轮换法（variable_rotation.m）、最速下降法（steepest_descent.m）、修正牛顿法（modified_newton.m）、共轭梯度法（conjugate_gradient.m）。另外，coefficient_matrix.m为目标函数系数获得矩阵，minval.m为最小值计算函数，gradient.m为梯度计算函数(Compression bag contains unconstrained optimization problems of several commonly used method of source: variable rotation Act (variable_rotation.m), steepest descent method (steepest_descent.m), as amended Newton (modified_newton.m), conjugate gradient method (conjugate_gradient.m). In addition, coefficient_matrix.m as the objective function coefficients obtained matrix, minval.m function for the minimum calculation, gradient.m for gradient calculation function)

energy leach a new version

本源码提供LMS算法的几种实现形式，分为256个信号点和1024个信号点。对理解LMS滤波器有很好的用处(The source provided several LMS algorithm implementation form, divided into 256 signal and 1024 signal. Have a good use for understanding the LMS filter)

VOLUMEMESH Creates solid volume metal meshes and their modificitations

说明：  一个关于主成分分析的matlab演示，十分有用(A principal component analysis on matlab demo, very useful)

matlab实现的最小二乘法拟合程序，其中包含了数值结果分析过程。(matlab implementation of least-squares fitting program, which includes the analysis of the numerical results.)

双音多频，由高频群和低频群组成，高低频群各包含4个频率。一个高频信号和一个低频信号叠加组成一个组合信号，代表一个数字。DTMF信号有16个编码。利用DTMF信令可选择呼叫相应的对讲机。(Dual tone multi-frequency, high-frequency and low-frequency group composed of groups, high-frequency group contains four frequencies each. A high-frequency signal and a low frequency signal is superimposed to form a combined signal representative of a number. DTMF signal has a 16 code. DTMF signaling to the appropriate use of the intercom call.)

采用加权网络中节点强度和权重都是幂率分布的模型，在matlab环境中自动识别连通区域的大小,用于时频分析算法。( Using weighted model nodes in the network strength and weight are power law distribution, Automatic identification in the matlab environment the size of the connected area, For time-frequency analysis algorithm.)

this is a matlab code fro h.264 coding